package niuKe.HW;

import java.util.*;

public class HJ3 {
    public static void main(String[] args) {

        String str = "你好呀";
        System.out.println(str);
        System.out.println(str.charAt(0));
//        method_1();
        TreeSet<Integer> treeSet = new TreeSet<>();
        for (Integer integer : treeSet) {
            
        }
    }

    private static void method_1() {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] nums = new int[n];
        for(int i = 0; i < n; i++) {
            nums[i] = sc.nextInt();
        }
        Set<Integer> set = new HashSet<>();
        for(int i = 0; i < n; i++) {
            set.add(nums[i]);
        }
        int count = set.size();
        Integer[] res = new Integer[count];
        res = set.toArray(new Integer[count]);
        Arrays.sort(res);
    }
}
